How We Hear
Anatomy of the Hearing System
Pathway to the Brain
Weird science
Loud or Quiet?
100

What do we use to hear sound?

Our ears

100

What is the part of the ear we can see called?

Pinna

100

What are vibrations that move through the air (or water, or solid things).

Sound waves

100

These tiny “hairs” inside your cochlea dance when they hear sound — but don’t try to brush them!

hair cells

100

A whisper in the library is this kind of sound, because it barely makes the air move.

Quiet

200

What is the first step in the system of how we hear?

The sound source. 
200

What is the small flap inside that shakes when sound hits it?

The eardrum

200

When sound gets louder, what happens to the vibrations?

They get bigger or stronger

200

This sticky stuff in your ears isn’t candy or butter — it’s actually there to keep your ears clean!

Earwax

200

What is louder - a vacuum cleaner or someone talking?

a vacuum
300

What part of the ear catches sound first?

The outer ear (pinna)

300

Name one of the three tiny bones in the middle ear.

malleus (hammer

incus (anvil)

stapes (stirrup) 

300

This part of your body understands the sound signals sent from your ears

The Brain
300

This special “phone line” carries sound messages from your ear all the way to your brain — no cell service needed!

What is the auditory nerve?

300

A lion’s roar at the zoo can be heard far away. This makes it this kind of sound.

loud

400

What happens when sound waves move through the air?

They make our eardrum vibrate

400

What is the snail-shaped part deep inside our ear called?

The cochlea

400

What is the order: sound → ear → _____ → brain?

nerve
400

This wiggly liquid inside your inner ear moves when you do — it helps you keep your balance so you don’t fall over!

inner ear fluid

400

A fire truck siren zooming by makes a sound that spreads far and shakes the windows. This sound is...

loud

500

What turns sound vibrations into signals the brain can understand?

The inner ear or cochlea

500

What carries sound signals from the ear to the brain?

The auditory nerve

500

What do we call the full trip sound takes from the ear to the brain?

The hearing pathway

500

This sneaky tube helps your ears pop when you go up a mountain or ride an airplane — no popcorn needed!

Eustachian tube

500

Clapping your hands in a big empty gym is louder than clapping in a small room. Why?

Because the sound bounces and spreads in the big gym.

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